cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A180427 Lexicographically earliest permutation of the positive integers such that the inverse permutation is also the absolute value of the first differences.

Table of values

n a(n)
1 1
2 2
3 4
4 10
5 13
6 3
7 19
8 38
9 16
10 5
11 9
12 73
13 48
14 43
15 23
16 6
17 15
18 42
19 7
20 14
21 45
22 8
23 49
24 64
25 12
26 72
27 17
28 50
29 97
30 154
31 20
32 95
33 27
34 98
35 18
36 83
37 21
38 99
39 91
40 173
41 22
42 107
43 89
44 103
45 190
46 169
47 28
48 117
49 104
50 127
51 155
52 24
53 118
54 219
55 26
56 135
57 29
58 142
59 258
60 25
61 147
62 36
63 181
64 11
65 35
66 159

List of values

[1, 2, 4, 10, 13, 3, 19, 38, 16, 5, 9, 73, 48, 43, 23, 6, 15, 42, 7, 14, 45, 8, 49, 64, 12, 72, 17, 50, 97, 154, 20, 95, 27, 98, 18, 83, 21, 99, 91, 173, 22, 107, 89, 103, 190, 169, 28, 117, 104, 127, 155, 24, 118, 219, 26, 135, 29, 142, 258, 25, 147, 36, 181, 11, 35, 159]